| Platinum 3문제 expand_more |
| 4165 | Sprinklers 2: Return of the Alfalfa | USACO 2020 US Open Platinum | 0 | 0 | |
| 4166 | Exercise | USACO 2020 US Open Platinum | 0 | 0 | |
 4167 | Circus | USACO 2020 US Open Platinum | 1 | 12 | 8.33% |
| Gold 3문제 expand_more |
 4168 | Haircut | USACO 2020 US Open Gold | 3 | 4 | 75.00% |
 4169 | Favorite Colors | USACO 2020 US Open Gold | 2 | 7 | 28.57% |
| 4170 | Exercise | USACO 2020 US Open Gold | 3 | 5 | 60.00% |
| Silver 3문제 expand_more |
 3687 | 사회적 거리두기 3 | USACO 2020 US Open Silver | 89 | 453 | 19.65% |
 3703 | 시리얼 | USACO 2020 US Open Silver | 77 | 237 | 32.49% |
| 3704 | 소입자 실험 | USACO 2020 US Open Silver | 49 | 270 | 18.15% |
| Bronze 3문제 expand_more |
| 3685 | 사회적 거리두기 1 | USACO 2020 US Open Bronze | 54 | 686 | 7.87% |
 3686 | 사회적 거리두기 2 | USACO 2020 US Open Bronze | 54 | 280 | 19.29% |
| 3702 | 소로나 바이러스 동선추적 | USACO 2020 US Open Bronze | 2 | 4 | 50.00% |
